Isolation transformer before a P3...overkill?


#1

Hi folks. Just curious what your thoughts are on adding an isolation transformer before a P3? Would it be overkill? There has been a lot of discussion on this thread (https://www.computeraudiophile.com/forums/topic/29662-discussion-of-ac-mains-isolation-transformers-started-wposts-moved-from-quotlps-1-troubleshootingquot-thread/). Sounds like the key is select a transformer with very low inter-winding capacitance.

Any input would be greatly appreciated.


#2

To add on to the question above:

I have a 2.5kVa Topaz isolation transformer wired for balanced power. This is a unit with .0005pF interwinding capacitance. This thing reduces common-mode noise by 146dB and normal-mode noise by 65dB. It also acts as surge suppressor reduce a 6,000 volt spike down to .003 volts.

What would the PS Audio power unit buy me over that?


#3

Lower output impedance for one thing.


#4

Which makes an astounding difference.


#5

And, regulation even under dynamic conditions (music is dynamic).